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0020958: EDF 1529 SMESH : If some faces have been meshed with small

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quadrangles Netgen 3D creates pyramids with volume zero and fails

   bool CheckIntersection(const gp_Pnt& P, const gp_Pnt& PC,
                          gp_Pnt& Pint, SMESH_Mesh& aMesh,
                          const TopoDS_Shape& aShape,
-                         const TopoDS_Shape& NotCheckedFace);
+                         const SMDS_MeshElement* NotCheckedFace);
This commit is contained in:
eap 2010-08-23 05:26:19 +00:00
parent 0bce8612a5
commit 91db52567f
2 changed files with 6 additions and 5 deletions
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9
src/StdMeshers/StdMeshers_QuadToTriaAdaptor.cxx
View File

@ -228,7 +228,7 @@ static bool HasIntersection(const gp_Pnt& P, const gp_Pnt& PC, gp_Pnt& Pint,
* \param Pint - (out) intersection point * \param Pint - (out) intersection point
* \param aMesh - mesh * \param aMesh - mesh
* \param aShape - shape to check faces on * \param aShape - shape to check faces on
* \param NotCheckedFace - not used * \param NotCheckedFace - mesh face not to check
* \retval bool - true if there is an intersection * \retval bool - true if there is an intersection
*/ */
//================================================================================ //================================================================================
@ -238,7 +238,7 @@ bool StdMeshers_QuadToTriaAdaptor::CheckIntersection (const gp_Pnt& P,
gp_Pnt& Pint, gp_Pnt& Pint,
SMESH_Mesh& aMesh, SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape, const TopoDS_Shape& aShape,
const TopoDS_Shape& NotCheckedFace) const SMDS_MeshElement* NotCheckedFace)
{ {
if ( !myElemSearcher ) if ( !myElemSearcher )
myElemSearcher = SMESH_MeshEditor(&aMesh).GetElementSearcher(); myElemSearcher = SMESH_MeshEditor(&aMesh).GetElementSearcher();
@ -266,6 +266,7 @@ bool StdMeshers_QuadToTriaAdaptor::CheckIntersection (const gp_Pnt& P,
for ( int i = 0; i < suspectElems.size(); ++i ) for ( int i = 0; i < suspectElems.size(); ++i )
{ {
const SMDS_MeshElement* face = suspectElems[i]; const SMDS_MeshElement* face = suspectElems[i];
if ( face == NotCheckedFace ) continue;
Handle(TColgp_HSequenceOfPnt) aContour = new TColgp_HSequenceOfPnt; Handle(TColgp_HSequenceOfPnt) aContour = new TColgp_HSequenceOfPnt;
for ( int i = 0; i < face->NbCornerNodes(); ++i ) for ( int i = 0; i < face->NbCornerNodes(); ++i )
aContour->Append( SMESH_MeshEditor::TNodeXYZ( face->GetNode(i) )); aContour->Append( SMESH_MeshEditor::TNodeXYZ( face->GetNode(i) ));
@ -501,7 +502,7 @@ bool StdMeshers_QuadToTriaAdaptor::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape
else { else {
// check possible intersection with other faces // check possible intersection with other faces
gp_Pnt Pint; gp_Pnt Pint;
bool check = CheckIntersection(PCbest, PC, Pint, aMesh, aShape, aShapeFace); bool check = CheckIntersection(PCbest, PC, Pint, aMesh, aShape, face);
if(check) { if(check) {
//cout<<"--PC("<<PC.X()<<","<<PC.Y()<<","<<PC.Z()<<")"<<endl; //cout<<"--PC("<<PC.X()<<","<<PC.Y()<<","<<PC.Z()<<")"<<endl;
//cout<<" PCbest("<<PCbest.X()<<","<<PCbest.Y()<<","<<PCbest.Z()<<")"<<endl; //cout<<" PCbest("<<PCbest.X()<<","<<PCbest.Y()<<","<<PCbest.Z()<<")"<<endl;
@ -512,7 +513,7 @@ bool StdMeshers_QuadToTriaAdaptor::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape
else { else {
gp_Vec VB(PC,PCbest); gp_Vec VB(PC,PCbest);
gp_Pnt PCbestTmp = PC.XYZ() + VB.XYZ() * 3.0; gp_Pnt PCbestTmp = PC.XYZ() + VB.XYZ() * 3.0;
check = CheckIntersection(PCbestTmp, PC, Pint, aMesh, aShape, aShapeFace); check = CheckIntersection(PCbestTmp, PC, Pint, aMesh, aShape, face);
if(check) { if(check) {
double dist = PC.Distance(Pint)/3.; double dist = PC.Distance(Pint)/3.;
if(dist<height) { if(dist<height) {

2
src/StdMeshers/StdMeshers_QuadToTriaAdaptor.hxx
View File

@ -72,7 +72,7 @@ protected:
bool CheckIntersection(const gp_Pnt& P, const gp_Pnt& PC, bool CheckIntersection(const gp_Pnt& P, const gp_Pnt& PC,
gp_Pnt& Pint, SMESH_Mesh& aMesh, gp_Pnt& Pint, SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape, const TopoDS_Shape& aShape,
const TopoDS_Shape& NotCheckedFace); const SMDS_MeshElement* NotCheckedFace);
bool Compute2ndPart(SMESH_Mesh& aMesh); bool Compute2ndPart(SMESH_Mesh& aMesh);